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| author | blueswir1 <blueswir1@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-05-03 20:52:26 +0000 |
|---|---|---|
| committer | blueswir1 <blueswir1@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-05-03 20:52:26 +0000 |
| commit | 4d07272d80c48e9a124c91a4f135839a65e7aeca (patch) | |
| tree | 50af2e82e07225a14d90d14ba4b0b4beff4e4288 /tcg/tcg-op.h | |
| parent | 6f551262b35aa5f95ef9a8a9e5b3e43871be66a6 (diff) | |
| download | qemu-4d07272d80c48e9a124c91a4f135839a65e7aeca.zip qemu-4d07272d80c48e9a124c91a4f135839a65e7aeca.tar.gz qemu-4d07272d80c48e9a124c91a4f135839a65e7aeca.tar.bz2 | |
Skip register moves when the target and the source are the same
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4312 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'tcg/tcg-op.h')
| -rw-r--r-- | tcg/tcg-op.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/tcg/tcg-op.h b/tcg/tcg-op.h index 5f66d7f..c1ff8f4 100644 --- a/tcg/tcg-op.h +++ b/tcg/tcg-op.h @@ -164,7 +164,8 @@ static inline void tcg_gen_br(int label) static inline void tcg_gen_mov_i32(TCGv ret, TCGv arg) { - tcg_gen_op2(INDEX_op_mov_i32, ret, arg); + if (ret != arg) + tcg_gen_op2(INDEX_op_mov_i32, ret, arg); } static inline void tcg_gen_movi_i32(TCGv ret, int32_t arg) @@ -495,8 +496,10 @@ static inline void tcg_gen_remu_i32(TCGv ret, TCGv arg1, TCGv arg2) static inline void tcg_gen_mov_i64(TCGv ret, TCGv arg) { - tcg_gen_mov_i32(ret, arg); - tcg_gen_mov_i32(TCGV_HIGH(ret), TCGV_HIGH(arg)); + if (ret != arg) { + tcg_gen_mov_i32(ret, arg); + tcg_gen_mov_i32(TCGV_HIGH(ret), TCGV_HIGH(arg)); + } } static inline void tcg_gen_movi_i64(TCGv ret, int64_t arg) @@ -719,7 +722,8 @@ static inline void tcg_gen_remu_i64(TCGv ret, TCGv arg1, TCGv arg2) static inline void tcg_gen_mov_i64(TCGv ret, TCGv arg) { - tcg_gen_op2(INDEX_op_mov_i64, ret, arg); + if (ret != arg) + tcg_gen_op2(INDEX_op_mov_i64, ret, arg); } static inline void tcg_gen_movi_i64(TCGv ret, int64_t arg) |